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From: Tomeu Vizoso <tomeu.vizoso@collabora.com>
To: linux-kernel@vger.kernel.org
Cc: Rob Herring <robh+dt@kernel.org>,
	Stephen Warren <swarren@wwwdotorg.org>,
	Javier Martinez Canillas <javier@osg.samsung.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Mark Brown <broonie@kernel.org>,
	Thierry Reding <thierry.reding@gmail.com>,
	Alan Stern <stern@rowland.harvard.edu>,
	"Rafael J. Wysocki" <rjw@rjwysocki.net>,
	linux-arm-kernel@lists.infradead.org,
	Dmitry Torokhov <dmitry.torokhov@gmail.com>,
	devicetree@vger.kernel.org,
	Russell King <rmk+kernel@arm.linux.org.uk>,
	Linus Walleij <linus.walleij@linaro.org>,
	Ulf Hansson <ulf.hansson@linaro.org>,
	linux-acpi@vger.kernel.org, Arnd Bergmann <arnd@arndb.de>,
	Tomeu Vizoso <tomeu.vizoso@collabora.com>
Subject: [PATCH v7 18/20] power-supply: Probe power supplies on demand
Date: Tue, 29 Sep 2015 11:10:56 +0200	[thread overview]
Message-ID: <1443517859-30376-19-git-send-email-tomeu.vizoso@collabora.com> (raw)
In-Reply-To: <1443517859-30376-1-git-send-email-tomeu.vizoso@collabora.com>

When looking up a power supply through its OF node, probe it if it
hasn't already.

The goal is to reduce deferred probes to a minimum, as it makes it very
cumbersome to find out why a device failed to probe, and can introduce
very big delays in when a critical device is probed.

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
---


 drivers/power/power_supply_core.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/power/power_supply_core.c b/drivers/power/power_supply_core.c
index 456987c88baa..80bc89f4ae89 100644
--- a/drivers/power/power_supply_core.c
+++ b/drivers/power/power_supply_core.c
@@ -19,6 +19,7 @@
 #include <linux/err.h>
 #include <linux/power_supply.h>
 #include <linux/thermal.h>
+#include <linux/of_device.h>
 #include "power_supply.h"
 
 /* exported for the APM Power driver, APM emulation */
@@ -206,6 +207,8 @@ static int power_supply_find_supply_from_node(struct device_node *supply_node)
 {
 	int error;
 
+	of_device_probe(supply_node);
+
 	/*
 	 * class_for_each_device() either returns its own errors or values
 	 * returned by __power_supply_find_supply_from_node().
-- 
2.4.3


WARNING: multiple messages have this Message-ID (diff)
From: tomeu.vizoso@collabora.com (Tomeu Vizoso)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v7 18/20] power-supply: Probe power supplies on demand
Date: Tue, 29 Sep 2015 11:10:56 +0200	[thread overview]
Message-ID: <1443517859-30376-19-git-send-email-tomeu.vizoso@collabora.com> (raw)
In-Reply-To: <1443517859-30376-1-git-send-email-tomeu.vizoso@collabora.com>

When looking up a power supply through its OF node, probe it if it
hasn't already.

The goal is to reduce deferred probes to a minimum, as it makes it very
cumbersome to find out why a device failed to probe, and can introduce
very big delays in when a critical device is probed.

Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
---


 drivers/power/power_supply_core.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/power/power_supply_core.c b/drivers/power/power_supply_core.c
index 456987c88baa..80bc89f4ae89 100644
--- a/drivers/power/power_supply_core.c
+++ b/drivers/power/power_supply_core.c
@@ -19,6 +19,7 @@
 #include <linux/err.h>
 #include <linux/power_supply.h>
 #include <linux/thermal.h>
+#include <linux/of_device.h>
 #include "power_supply.h"
 
 /* exported for the APM Power driver, APM emulation */
@@ -206,6 +207,8 @@ static int power_supply_find_supply_from_node(struct device_node *supply_node)
 {
 	int error;
 
+	of_device_probe(supply_node);
+
 	/*
 	 * class_for_each_device() either returns its own errors or values
 	 * returned by __power_supply_find_supply_from_node().
-- 
2.4.3

  parent reply	other threads:[~2015-09-29  9:12 UTC|newest]

Thread overview: 58+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-09-29  9:10 [PATCH v7 0/20] On-demand device probing Tomeu Vizoso
2015-09-29  9:10 ` Tomeu Vizoso
2015-09-29  9:10 ` Tomeu Vizoso
2015-09-29  9:10 ` [PATCH v7 01/20] driver core: handle -EPROBE_DEFER from bus_type.match() Tomeu Vizoso
2015-09-29  9:10   ` Tomeu Vizoso
2015-10-17  6:51   ` Greg Kroah-Hartman
2015-10-17  6:51     ` Greg Kroah-Hartman
2015-09-29  9:10 ` [PATCH v7 02/20] ARM: amba: Move reading of periphid to amba_match() Tomeu Vizoso
2015-09-29  9:10   ` Tomeu Vizoso
2015-09-29  9:10 ` [PATCH v7 04/20] of: add function to allow probing a device from a OF node Tomeu Vizoso
2015-09-29  9:10   ` Tomeu Vizoso
2015-10-17  6:53   ` Greg Kroah-Hartman
2015-10-17  6:53     ` Greg Kroah-Hartman
2015-09-29  9:10 ` [PATCH v7 05/20] gpio: Probe GPIO drivers on demand Tomeu Vizoso
2015-09-29  9:10   ` Tomeu Vizoso
2015-09-29  9:10 ` [PATCH v7 06/20] pinctrl: Probe pinctrl devices " Tomeu Vizoso
2015-09-29  9:10   ` Tomeu Vizoso
2015-09-29  9:10 ` [PATCH v7 07/20] regulator: core: Probe regulators " Tomeu Vizoso
2015-09-29  9:10   ` Tomeu Vizoso
2015-09-29  9:10 ` [PATCH v7 09/20] drm/tegra: Probe dpaux devices " Tomeu Vizoso
2015-09-29  9:10   ` Tomeu Vizoso
2015-09-29  9:10 ` [PATCH v7 10/20] i2c: core: Probe i2c adapters and " Tomeu Vizoso
2015-09-29  9:10   ` Tomeu Vizoso
     [not found] ` <1443517859-30376-1-git-send-email-tomeu.vizoso-ZGY8ohtN/8qB+jHODAdFcQ@public.gmane.org>
2015-09-29  9:10   ` [PATCH v7 03/20] of/platform: Point to struct device from device node Tomeu Vizoso
2015-09-29  9:10     ` Tomeu Vizoso
2015-09-29  9:10     ` Tomeu Vizoso
2015-09-29  9:10   ` [PATCH v7 08/20] drm: Probe panels on demand Tomeu Vizoso
2015-09-29  9:10     ` Tomeu Vizoso
2015-09-29  9:10     ` Tomeu Vizoso
2015-09-29  9:10   ` [PATCH v7 11/20] pwm: Probe PWM chip devices " Tomeu Vizoso
2015-09-29  9:10     ` Tomeu Vizoso
2015-09-29  9:10     ` Tomeu Vizoso
2015-09-29  9:10   ` [PATCH v7 17/20] dma: of: Probe DMA controllers " Tomeu Vizoso
2015-09-29  9:10     ` Tomeu Vizoso
2015-09-29  9:10     ` Tomeu Vizoso
2015-09-29  9:10 ` [PATCH v7 12/20] backlight: Probe backlight devices " Tomeu Vizoso
2015-09-29  9:10   ` Tomeu Vizoso
2015-09-29  9:10 ` [PATCH v7 13/20] usb: phy: Probe phy " Tomeu Vizoso
2015-09-29  9:10   ` Tomeu Vizoso
2015-10-17  6:55   ` Greg Kroah-Hartman
2015-10-17  6:55     ` Greg Kroah-Hartman
2015-09-29  9:10 ` [PATCH v7 14/20] clk: Probe clk providers " Tomeu Vizoso
2015-09-29  9:10   ` Tomeu Vizoso
2015-09-29  9:10 ` [PATCH v7 15/20] pinctrl: Probe pinctrl devices " Tomeu Vizoso
2015-09-29  9:10   ` Tomeu Vizoso
2015-09-29  9:10 ` [PATCH v7 16/20] phy: core: Probe phy providers " Tomeu Vizoso
2015-09-29  9:10   ` Tomeu Vizoso
2015-09-29  9:10 ` Tomeu Vizoso [this message]
2015-09-29  9:10   ` [PATCH v7 18/20] power-supply: Probe power supplies " Tomeu Vizoso
2015-09-29  9:10 ` [PATCH v7 19/20] driver core: Allow deferring probes until late init Tomeu Vizoso
2015-09-29  9:10   ` Tomeu Vizoso
     [not found]   ` <1443517859-30376-20-git-send-email-tomeu.vizoso-ZGY8ohtN/8qB+jHODAdFcQ@public.gmane.org>
2015-10-14 23:12     ` Frank Rowand
2015-10-14 23:12       ` Frank Rowand
2015-10-14 23:12       ` Frank Rowand
2015-09-29  9:10 ` [PATCH v7 20/20] of/platform: Defer probes of registered devices Tomeu Vizoso
2015-09-29  9:10   ` Tomeu Vizoso
2015-10-14 23:12   ` Frank Rowand
2015-10-14 23:12     ` Frank Rowand

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